Fuel-economizer soot-cleaner.



I N0. 858,334. PATENTED JUNE 25, 1967.

W. EICHELBERGER. FUEL EGONOMIZER soow CLEANER.

APPLICATION FILED APR.22,1907.

:TddZZQwitom it concern: "'Be it kn'own that '1, WILLIAM ErouELnnaems citizenof the United States of America,

iWlLIiIhlViEICIQEEL-BERGER, F D UBOIS, PENNSYLVANIA, AssieNoR io-THE 's'oo'r CLEANER COMPANY OF PITTSBURG PA., or .DUBOIS,

; jPENNsYLVANLA, A CORPORATION on NEW JERSEY.

f FUEL-E'cQNowiizER SCOT-CLEANER- NJ. 85 ,3 i l residin at Dubois, in the county of QlearlIO fie'ld' and State of Pennsylvania, have invented certain new and useful Improvements in Fuel-Economizer Sootglleaners, of which the 'following' is a specification, reference bemg had therein to the accompanying drawmg.

' Fuel ec'onor'n'izers, for the purpose of heatwater preliminary to its passage into the 'fbOllGP', by the use of the waste gases and other products of combustion. are generally .j located in the ath of travel of such roducts vl ea'dingfrom t e boiler or boilers to t e chimney or stack, and com' ise a chamber having a a plurality of. space tion of t e heat the tubes.

this suitable tulsacleaners are employed, vertivertically-extending tubes mounted inseries, the upper and lower ends-of the tubes being connected by hori- 'zoi'itally-extending' tubes or connections extending crosswise of the chamber,v thereby presenting a'series of vertically-extending tubes across the path of travel of the gases and other products of combustion. 'Ijhe lines of tubes are, arranged. in ser1es and w th 'suitableconnections to n ovidea circulation of water therethr ough and the chamber is referably an enlarged portion of the pass'age Beading from the boiler to the clumney, each line of tubes being of sufficient length to extend practically across the chamber. As the tubes are located within the path of travel of the products of combustion, the

"outer surfaces of the tubes quickly collect the soot particles carried by such products, thereby reventing the maximum applica- Toprevent saidcleaners' being-adapted to trave cally over thctsllrfaces of the tubes, these movements removin the soot particles and scale which mat :00 ect on the tubes, n a manner sirniigrto a scraper, particles 'thiis removeddropping downward intoj a soot collecting chamber located beloWthe plane of'the lower horizontally-extendin pipes.

Ks'th'e lower i'pes or tubes are on a p ane ap- I roxiriiate tli slt of the bottonr'of'the smoke ue .or assage for the products leading {rem the ho er flues, and present obstructionsto the 'p sage of such products, the latter passove said horizontally-extending pipes or tubesin passing tothe. chimney, the soot- Specification of Letters Patent,

I Application filed April 22, i907. Serial No. 369,633-

natural Patented rune 25, 1907.

chamber is located out of the path of travel of such products and thereby provides a collectin chamber for the soot and other partic es.

In order to procure a maximumamount of service from the waste products-without,

I however; providing a structure of such length as to affect the natural draft of the boiler or boilers, as Well as to permit of the use of a cleaning device or-devices which are not un wieldly in operation and which will operate on a maximum number of tubes simultaneously,

the tubes are arranged relatively close totubes and the vertically-extending tubes,

with a gradually increasing tendency to close the space between the horizontal pipes and thereby prevent the droppinglof the particles into the soot-chamber as we as to tend to decrease the heating power of said horizontal tubes. To overcome this difliculty the present invention is provided. As indicated, the invention relates to fueleconomizers and has for one of its objects the provision of means for clearing the lower portions of the circulating systems thereof 'of soot or other particles. This object is accomplished by projecting a series of steam jets from the soot-chamber in a direction angular with respect to the path of travel of the products of combustion, said jets passin through the spaces between'the tubes an dislodging the particles from said tubes, said particles assing into the current forming the chimney. I I I Y The further object of the invention isto provide means for projecting a pli'irality of steanr "ets in a direction which will tend to raise t e soot contained within the soot-- chamber, the raisin 'of the soot particles ca them into t e path of travel of the products 'of combustion; v

raftand passing with it into the the views,

To these and other ends the nature of which will be readily understood as the in- Fig. 2 is a sectional view of the same taken on line 2 2 of Fig. 1. Fi 3 is a sectional view taken on line of ig. 1. Fig. dis a detail sectional view showing the location and arrangement of the jet-producing perforations. ig.. is a detail view of one of the pipes hereinafter articularly referred to.

In describing t 1e invention, Twill first describe in general terms thestructure of so much of a fuel-economizer as is shown in the drawings, in which 10 indicates the smokefiue or passage for the products of co1nbustion leading from the boiler fiues; 11, designates the chamber for the circulating tubes, and 12 the soot-chamber. The outlet from the chamber 11 is not shown, but will be understood to be at the end of the chamber illopposite that of the flue 10.

13 designates a series of vertically-extendmg tubes connected at their lower ends to the horizental tubes 1 1 extending cross-wlse of the chamber 11, and 15 designates the tube cleaners movable vertically over the surfaces of the tubes 15 by suitable means (not shown), the structure selected for illustration being that known as the Green Fuel.

Economizer. Theparticular operation of these parts have been heretofore described and it is not believed to be necessary to again refer to it excepting as is necessary in the following description of this invention in connection therewith designates a steam-pipe connected to a suitable source of steam-supply, said pipe being located outside of and in a direction longitudinal of the soot-chamber.

At suitable intervals along said pipe 20 are located branch pipes 22, each having a valve 23, and each having at its opposite end a coupling'to which. are secured two pipes 24 which extend througl'i the walls of and into the soot-chamber, said pipes extending crosswise of said chamber preferably to a point approximate the opposing wall of the charm her. Said pipes Z ta-re provided with a series of perforations 25, said perforations being arranged in staggered form, as shown in l. The upper row of perforations are adapted to A valveQlcontrols the passage of steam thereto.

direct the jets of steam issuing therefrom upwardly in a relatively inclined direction, as indicated by the arrows 26 in Fig. 1, while the other row of perforations is adapted to direct the steam ets in a horizontal direction. as shown in said figure. The pipes 24 may. if desired, be provided with nozzles in lieu of the apertures 25. The jets of steam from the upper row of perforations are projected toward the pipesor tubes 14, the direction of projection is not truly vertical (which. would tend to pass them into the path of travel of the products of combustion. at a right angle) but is in a direction angular with respect to such path of travel, the angle inclining toward the direction of the l low of the products passing through the chamber 11 so that the soot particles dislodged by the jets will be passed into the current and if not of suliicient weight to drop back and into the soot-chamber, Wlll be carried outthrough the chimney. In addition, the direction in which the steam jets are projected vnll tend to increase the draft through the chamber 11 The jets of steam from the lower row of perforations are mainly intended to be used for the cleaning of the soot-chamber itself, said perforations directing the steam jets in a d irection parallel with and adjacent the bottom of the soot-chamber, thereby raising the soot and tending to carry it into the path of the natural. draft, or into the path of the upper row of steam jets by which it would be moved into the natural draft. That portion of the soot which would "be carried directl rearward and-which would lodge against the wall of the soot-chamber, 'would be raised by the steam jets issuing from the perforations 25. located at the top of the last pipe. designated at 24;, said steam-jets being directed substantially vertically, said structure raising the soot at that end of the chamber and carrying it-into the path of travel of the products of combustion at a point where its further" movement must be in the direction. of the chimney.

While I have shown two pipes 24 connccted to each branch-pipe 23, it is to be understood that the number of such pipes connected to each branch may be more or less than this number, as dcsired. As each branch-pipe is controllable as well as is the entrance of steam into the pipe 20,'it will be understood that the projection of the steam jets is under the entire control of the opera-- 5 "Having'new described myinvention, but

without pointing out more than one particular structurefor carrying the'same into effect, res'erving'to myself'the right touse any and 5 all modi'fications thereof-as may fall within the spirit. and scope of the invention,,what I claim as ncw is lf-Afucl-economizer system including an inclose'd watcr-circulatin structure located within the path of traveof the products of combustion, movable means for clearing the cxposcd'su'rfaces of the main portion of said structure, and auxiliary means for clearing the surfaces of the lower portion of said structure. a U

2. :A fuel-economlzer system including an incloscd Water-circulating structure located within the path of travel of the products of combustion, movable means for clearing the exposed surfaces of the main portion of said structure, and auxiliary means for clearin the surfaces of the lower portion of sai structure, said means assisting the natural draft assing through said structure.

3. X fuel-economizer system including an incloscd Water-circulating structure located within the path of travel of the products of combustion, movable means for clearing the exposed surfaces of the main portionof said structure; and auxiliary means for clcarin' the surfaces of the lower portion of sai structure, said means bein located out of the normal path of travel 0 the products.

4. A fuel-economizer system including an inclosed water-circulatingv structure located within the path of travel of the products of combustion, movable means for clearing the exposed surfaces ofithe main portion of said structure, and auxiliary means for clearin the surfaces of the lower portion ,of said structure, said means being located out of the normal path of travel of the roducts and o crating to assist the natural raft,passing t rou h said structure.

fucl-economizcr system including an inclosed water-circulating structure located within the path of travel of the products of combustion, movable means for clearing the exposed surfaces of the main portion of said 5 structure, and auxiliary means for clearing the surfaces of the lower portion of sai structure, .said means being located below the bottom of said structure.

6. The combination with a fuel-econo- S5-mizcr system having an inclosed water circulating structure located in the path of travel of the products-of combustion, and also having a soot-chamber located below said path of travel, of means," located in said soot-chamber for-projecting steam toward said structure and said path of travel.

The combinat' n fiwith a fuel-economizer system havi "'n inclosed water-circulating structurev coated in the path-of chamber forprojecting a plurality of steam' said path of travel. 9. ,The combination with a fuel-economizer system having an inclosed water-cir- 8 culating structure located in the path of travel of the products of combustion, and also having a soot-chamber located below said path of travel, of means located in said soot-chamber for projecting a pluralityof steam jets in a direction angular with respect to said path of travel, the angle inclini toward the direction of flow.- of the pro ucts passing through said structure.

1O. The combination with an incl'o'sed wa-. o ter-circulating structure located in the path of travel of the products of combustion, of means located without said path for control lably projecting steam into contact with said jets ina direction angular with respect to slt'ructure to clear it from collected soot parti 11. The combination with a fuel economizer system having a water-circulating structure located in the path of travel of the products of combustion and having a soot- 10c chamberloca-ted therebclow, of means for carrying the soot contained within said chamber into the path of travel of the products of combustion. p

12. The combination with a fuel econox05 mizer system' having a water-circulating structure located in the path of travel of the products of combustion and having a sootchamber located therebclow, of means lo- ;cated within the soot-chamber for carrying up the soot contained within said chamber into the path of travel of the products of combustion.

13. The combination with a fuel economizer system having a water circulating n 5 structurelocated in the path of travel of the products of combustion and having asootchamber located therebclow, of means located at the bottom of the soot-chamber for carrying the soot contained within said cham n ber into; the path of travel of the products of combustion.

1 1. The combination with a fuel economizer system having a water-circulating structure located in the-path f travel of. the

products of combustion and having a sootchamber located therebclow, of means for projecting a plurality of steam jets in a -cha1nber located therebelow, of means for projecting one series of steam jets in a direction angular with respect to the (plane of the bottom of the soot-chamber an projecting another series of jets ina direction parallel with said bottom to carry the soot contained within the soot-chamber into the path of travel of the products of combustion.

:16. The combination with av fuel economizer system having a Water-circulating structure locatedzi'n the path of travel of the products of combustion and having a sootchamber located there'below, of. means for projecting one series of steam jets in a direction angular with respect to theplane of the bottom of the soot chamber and projecting another series of jets in a direction parallel with saidbottom, means for forming apluralit of vertical steam jets adjacent the rear wallof the soot-chamber, being provided, the combined action of said steam jets being to carry'the soot contained within said chamber into the path of travel of the products of combustion.

1.7. The combination with a fuel economizersystem having a Watercirculating structure located in the path of travel of the products of combustion and having a sootchainber located thcrebelow, of means for cleaning the surfaces of the lower portion of said water-circulating structure and the soot chamber, the soot being carried into the path of travel of the products of combustion.

18. .The combination with a fuel economizer system having a watercirculating structure located in the path of travel of the products of combustion and having a soote chamber located therebelow, of means lodated within the soot-chamber for cleaning the surfaces of the lower portion of said water-circulating structure and the soot-charm ber, the'so ot being carried into the path. of travel of the products of combustion.

In testimony whereof I alfix my signature in the presence of two witnesses.

WILLIAM EICHELBERGER. Witnesses:

DELos E. HIBNER, CHARLES A. FYE. 

